At the superficial inguinal canal increased abdominal pressure leads to closure by approximation of crura in the opening. This defect is seen in an aponeurosis formed by which of the following muscles?

Anatomy

At the superficial inguinal canal increased abdominal pressure leads to closure by approximation of crura in the opening. This defect is seen in an aponeurosis formed by which of the following muscles?

The action of digastric muscle is:

Which of the following vessels supply the anal canal?

All of the following muscles are elevators of the mandible EXCEPT: